Sound Control of movable walls.
Sound Control of movable
walls.
Sound control or sound insulation
of movable walls usually refers to sound control of air bone sounds in
laboratory circumstances. The dB values are according to the method ISO 140-1978
and to the standard ISO 717.
The manufacturer can be held
responsible only for its products and work validity of its instructions for
sound insulation work of tracks and brackets. Sound control between that spaces
divided cannot be guaranteed but the manufacturer if he has not influenced the
quality and parts of the construction surrounding the movable
wall.
Buildings always have flanking
paths that contribute to sound leaks. Flanking paths vary case by case –
decrease in sound control can be about 5 dB to even 20
dB.
Good sound control can be achieved
only by careful planning of the whole beforehand. E.g. different kinds of ducts
and pass doors from space to another will cause
problems.
Checklist:
Permanent wall around movable
wall
-
Are end walls
of the kind not to transmit sound well or can they be cut. Uncut board wall may
cause big sound control problems.
-
Are there in
permanent walls e.g. cable ladders from space to another so that sounds are
transmitted well?
-
Are there
supplies and return air ducts in permanent walls?
-
Are there
central-heating pipes from space to another?
Space above suspended
ceiling
-
Insulation
has to be made case by case according to
instructions
-
Check that
there are no air or other ducts from space to
another
Floor
-
check floor
construction and material
-
if the floor
is parquet it should be cut under the movable wall. Otherwise foot step and
other sounds are transmitted from space to another.
-
Make sure
that there are no air heating ducts from space to
another
You have to be absolutely sure that
you or your customer understands what the sound ratings stated and required
mean.
If you have any additional
questions about sound control of movable walls, please contact Movable Wall team
using our contact form.
Request more
information
Movable Wall Team
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